A method for recycling obsolete waste in informal landfills

Abstract

The invention discloses a method for recycling obsolete waste in informal landfills, which consists of excavation and transportation, comprehensive sorting, and material disposal; in the excavation and transportation, stabilization treatment is carried out according to the characteristics of the obsolete waste , to avoid the leakage of toxic substances; in the comprehensive sorting stage, the screening, manual sorting, crushing, magnetic separation, and winnowing processes are combined, and the operating parameters are optimized to efficiently separate the magnetic substances, humus, and Recyclable substances, combustibles and toxic and harmful substances realize the precise sorting and classification of available resources in stale garbage, and at the same time optimize the combination of devices to improve the effect of manual sorting and screening; the technical solution of the present invention realizes the reduction of stale garbage At the same time, it also frees up valuable space for the closed landfill to accommodate new domestic waste, and alleviates the need for new landfills to fill the growing domestic waste. The economic pressure and social pressure of burying the site.

Description

technical field [0001] The invention relates to the technical field of solid waste treatment, and more specifically relates to a method for recycling obsolete waste in informal landfills. Background technique [0002] With the continuous improvement of the economic level and the improvement of people's living standards, the amount of domestic waste generated has increased rapidly. At present, the sanitary landfill method is mainly used for disposal, and the required landfill area is getting larger and larger. But today's land resources are very tight, and it is difficult to choose a site for a new waste treatment facility. In addition, many landfills have reached the end of their useful life. Over time, more and more landfills will need to be closed. [0003] There are two types of landfills: regular landfills and informal landfills, but at present most of the landfills are informal landfills. Informal landfills were mainly formed at the end of the last century due to ra...

AI Technical Summary

Problems solved by technology

Since the informal landfill is filled according to the natural and geographical conditions, the approval procedures of relevant government departments have not been carried out before use, the legal approval procedures for land use, planning and project approval, and environmental protection have not been completed, and the permeation treatment has not been done, so The degree of pollution to the environment is extremely high, and some landfills have exposure problems, and the smell near the site is smoky, which seriously endangers the health of the people

Compared with formal landfills, informal landfills contain a wide variety of waste, including some toxic and harmful wastes that are prohibited from landfilling. Most of the existing obsolete waste treatment technologies are excavated for formal landfills. garbage from non-standard landfills is less effective. No matter from the method to the selection of equipment, it is easy to cause toxic and harmful substances in the process of treatment to enter the environment or into resource-recycled products. Processing also consumes a lot of energy

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